Every 2000 Service. Hours
(21) Cooling System - Change Antifreeze Solution
At Operating Temperature, engine coolant is hot and
Steam can cause personal Injury.
Check coolant level ONLY when engine is stopped and
radiator cap is cool enough to touch with your hand.
Remove filler cap slowly to relieve pressure.
Cooling System Conditioner contains alkali. Avoid
contact with skin and eyes to prevent personal injury.
Loosen the radiator cap slowly to release
Remove the radiator cap.
3. Remove engine block drain plugs. Allow coolant to
All water is corrosive at engine operating temperature.
Use either Caterpillar Cooling System Conditioner liquid,
or the coolant conditioner element to treat either plain
water or ethylene glycol antifreeze solution. NEVER use
both the liquid cooling system conditioner and the coolant
conditioner element at the same time.
attachment coolant conditioner group maintenance filter
element with the appropriate precharge filter element Do
not use Caterpillar Cooling System Conditioner or
Coolant Conditioner Elements with Dowtherm 209 Full-
Fill coolant Never add coolant to an overheated engine;
allow the engine to cool first.
Remove the radiator drain plug. Allow the
coolant to drain.
Clean the drain plugs.
Install the drain plugs.